Subtract 90/63 from 24/15, Solve 1 9/15

Subtract 90/63 from 24/15

1^st number: 1 9/15, 2^nd number: 1 27/63

24/15 - 90/63 is 6/35.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 15 × 21 = 315,
24/15 = 24 × 21/15 × 21 = 504/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
90/63 = 90 × 5/63 × 5 = 450/315
Subtract the two like fractions:
504/315 - 450/315 = 504 - 450/315 = 54/315
After reducing the fraction, the answer is 6/35

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